Hoisting-pulley.



:H. MYERS. HOISTING PULLEY.

APPLICATION FILED AUG. 14.1906.

\Vitpcsses PATENTED JAN.Z1, 1908.

V2 sHEBTssHB'ET 1.

v H. I A. MYERS.

HOISTING PULLEY. APPLI OATIO'N FILED AUG.14.1 906.

PATENTED JAN. 21

2 SHEETS SHEET 2 Gosh'en, county of Elkhart, and State of Indi-' UnirED STATES PATENT on-F1012.

HUBERTA. MYERS, or eosn-Em ND NA, issuanceToALLEN P; BOYER, or GOSHEN, I .INDIANA.-

IHOISTING-PU'LLEY; I

Specification of Letters Patent.

Patented Jan. 21 ,11 908.

Application filed August 14. 1906. Serial No. 330.550-

To all whom 'it may concernff I -Be it known that 1,HU'BERT A. MYERS, a citizen of. the United States, residing at ana, have invented certain new and useful Improvements in Hoisting-Pulleys, of which the following is a specification.

This invention relates'to improvements in hoisting apparatus.

V My improved hoisting apparatus is particularly designed for use in carriers, such as .hay carriers and the like, although 1t.1s

I adapted and desirable for use in any relation where it is desired to look a load in an elevated position.

The main ob ect'o f this invention is a; pro-5 vide a hoisting apparatus adapted. to auto matically lock the load in position.

Further objects, and objects relating to structural detail, will definitely appear from the detailed description to follow.

I accomplish the ol' jects'of my invention by the devices and means described in.the

following specification.

I The invention is clearly defined pointed out in the claims.

and

f A structure embodying the features'of my invention is clearly illustrated in the accomfication in which.

Figure 1 is a side elevation of a structure- 2.is' an elevation thereof, lookingfrom the I frame of a carrier or other'suppoi'tr frame? is suspended from the support. 1 and.

.left of Fig. 1, the hoisting-rope being removed. Fig 3 is an vation showing the clutch member 9v in its clamping position. Fig. 4 is a detailsection showing structural details. In the drawing, similar reference characters' refer tosimilar parts throughout the several views. y I

Referring to the drawing, 1 represents -Itpe 1e ispreferably formed of vertical side pieces and a laterally projecting portion 3 at their lower ends.

The pulley spindle as 4. On the pulley 5 are laterally projecting teeth ,or projections 6 arranged at suitable intervalsabout the same. clutch member 9, the innerface of which is ireferably'curved to correspond to the pride is carried by .the lever 7 and the link 8. T iese supports for the clutch member or clamping v panying drawing forming a part of this s pe'c1-' enlarged detail side ele- 5 is journaled ona suitable jaw-91am so arranged that when the clutch -member is swung downwardly, it is forced inwardly against the rope arranged on the pulley clamping the same thereon. On the clutch 9 is a pawl 10 adapted-when the clutch is forced downwardly and inwardly from its normal position,.to engagethe teeth on the pulley so that on the backward movement of the pulley, whenthe pawl is in engagement therewith, the clutch is carried downwardly and drawn inwardly against the rope, as appears in dotted lines in Fig. 1.

In order that the clutch may be automat ically actuated by the .load, I provide a lever 14 which. pivoted at 15 and connected to 'the lever 7 by a suitable link 13. Then this lever 14 is'forced downwardly, it actuates the lever 7 throwing the pawl 10 into engaging position with the pulley so that on the rearward movement of the pulley, the clutch is drawn against the rope. serves as the other clamping member.

The pulley itself Thus arranged, the greater the load the greater the clamping force of the clutch.

The hoisting rope, as 20, is connected to a movable member 17, preferably a swivel bolt which is arranged through the projection 3 of the pulley frame. A spring-18 is arranged on this bolt, the tension of the's sufficient to sustain the weight 0 the tackle, so that the clutch there is no load. carrying a load, the bolt is wardly engaging the lever 14, and, throu h the connections described, actuates t e clutch by throwing it downwardly until the As soon as the rope 20 is drawn. down- 9 is not actuated whenv ring being pawl 10 thereof is in position to engage the pulley.

A stop in the form of a sleeve 23 is pro-1 vided for limiting the movement imparted bythe weight of the load to the bolt so that the rope passes freely under the clutch. until it is brought down into its; clamping osition by-the rearward, movement of the piilley. The pawl 10 is pivoted at 11 so that on the forward movement of the'pulley, it sli sover 'theteeth. A stop 12 is provided or the pawl so that, as soon as the pulley moves rearwardlv, as has. been stated, the clutch is brought down into its clamping iosition.

In the structure illustrated, I Show a pair of pulley blocks ne'cted thereto. These, of, course, form no art of the invention.

21, having slings 22 6011- 'gagin position by the spring 16 which is connecte to the link 13 and to the frame By arranging the parts as I have illustrated and described, I provide a device by which the load is automatically locked in any position, the weight 'of the load serving to actuate the clutch. The pulley forms one of the clutch members, thereby simplifying the construction! The rope is clamped so that the wear thereon is reduced to a minimurnj In cases .where' it is' desired to-release the clutch. while the'rope is carrying a load, the' I same may be tripped by meansof the lever 7,

a rope or other connection being attached to .tionin structural detai- I claim as new and desire to secure by Letv the projecting end there'off ,a pawl carried therebyfa lever ivoted to {said frame and 'to said clutch mem er; a link pivoted to said frame and clutch member, coacting with said lever to support saidclut'ch member; a hoisting rop'e; a vertically mov' able member to which said rope is attached;

' astop for limiting the downward movement 5 of saldnlember; a spring for holding said member normally upward; a lever actuated I by'saidmember on t e downward movement thereof, connected to said clutch-carrying lever, whereby the clutch member is shifted to bring the pawl thereon into engaging posi tion with sald pulley; a spring for returning .said clutch member to its initial osition when released; and a trip for sai clutch I member, for the purpose specified.

2. The combination with a frame, of a ulley having teeth thereon; a clutch mem er;

a pawl carried thereby; a lever ivoted to said frame andv'to said clutch mem er; 'a fill-1k,

pivoted tosaid frame and clutch member, coacting withsaid lever to support said 1 clutch member; a hoisting rope; a vertically movable member to which said rope is'a't-z tached; a vsto 'p for limiting the downward mvement of said member; a spring for holding saidimembernormally upward; v a lever 'actuat'ed'fby said member on the downward -movement thereof, connected to said clutch- ,Ycarryinglever, whereby the clutch member is shifted to bring the pawl thereon into ento gagi g-positionvw th-saldjpulley; a spring for returning saidcclutc p ed, ore- 15 9 Pa -"p position when greleas specified.

3. The combinationlwith "fra'lhegof a ley having teeth therecn,

armament Jet er torts, imtiai=.

pivoted to said frame and clutch member, coacting with said lever-t0 support said clutch member; a hoisting rope; a vertically movyable member to which said rope is attached;

of saldmemberya spring for holding said by said member on t e downward movement thereof, connected to said clutch-carryin lever, whereby the clutch member is shifte tion with said pulley; and a trip for said clutch for the urpose specified.

ley having teeth thereon; a clutch mem er;

pivoted to 'said' frame, and clutch member, coacting with said-lever to-support said clutch a stop for limiting the downward movement of said member; a sprin for holding said member normally upwa'r and a lever ac movement thereof, connected to said clutch carrying lever, whereby the clutch member is shifted to bring the pawl thereon intoengaging position with said pulley, for the purpose specified. a

5. The combination with aframe', of a ula pawLcarried thereby; a lever'pi'voted to sald frame and to said clutch member; a link pivoted to said frame and clutch member,

able member to which said rope is attached; v a lever actuated bysaid member on the downclutch-carrying lever, whereby the. clutch -member is shifted to bring the pawl thereon spring for returning said clutch member to its initial position when released; and a trip for said clutch specified.

6. Thecombination with a frame, of a pulcoacting said lever to support said clutch ,member; a hoisting rope; a vertically movable memberlto which said rope is attached a lever'actuatedrbysaid member on the down- GlHtch-carIying member is shifted to bring the 'awl thereon a spring for returning said clutch member to 4. The com ina'tioii with a frame, of a, ul-

.member; a hoisting rope; a 'vertically'inovable member to which said rope is attached; M

tuated by said memberon the downward ley having teeth'thereon; a clutch mem er;

ward movement thereof, connected to said' into engagingposition with said pulley; a

-ley havingteeth thereon; a clutch member;,

awl carried'thereby; a lever pivoted to sald frame andto said clutclrm'ember; alirik' pivoted to said frame and clutch member,

its initial position when released, for the pur.-

.pawl carried thereby; a lever voted to said frame andto'said clutch mem er; a link a stop for limiting the downward movement member normally u ward; a lever actuated to bring the pawl thereon into engaging posi-- a pawl carried thereby; a lever ivoted to said frame and to said clutch mem er; a link coacting-with said lever to support said'clutch" -member; a hoisting rope a vertically mov- I member, for the purpose ward movement thereof,jconnected to said lever, whereby the clutch 'iii teengaging position with sai pulley and 1 link pivoted. to

v pulley '7. The combination with aframe, ofa

a clutch mempulley having teeth thereon;

a lever pivoted ber; a pawl carried thereby;

to said frame and to said clutch memberya v said frame and clutch mem-' ber, co-acting with said lever to support said clutch member; ahoisting rope; a vertically" 'movable member to which said rope is" attached a lever actuated by said member on the downward movement thereof, connected to said clutch-carryin glever, whereby the clutch member is shifted to bring thepawl thereon into engaging position with said pulley and a trip for said clutch, for the purpose specified.

8. The combination with a frame, of at having teeth thereon; a clutch member; a pawl carried'thereby; a-leverpivoted to said frame and to saidclutch member; a link pivoted .to said frame and clutch member, coacting with said lever to support said clutch member; a hoisting rope; a vertically movablemember to which said'rope is attached; anda lever actuated by said'member on-the downward movement thereof, connected to said clutch-carrying lever, whereby the clutch member is shifted to bring the pawl thereon into engaging position with said pulley, for thepurpose specified;

9. The combination witha frame, of a pulley having teeth thereon; a clutch member; supporting links for-said clutch member; apawlcarrie'd by said clutch;' a-'ho isting rope; a movable member to which said-rope is attached, connected to-said clutch, where by the same is actuated to brin the pawl thereof into engagement with sai pulley; a spring for returning said movable member to its initial position; a spring for returning said clutch member to its initial position when re leased; and a trip for said clutch member, for the purpose specified. g

14'). The combination with a-frame, of a pulley having teeth thereon; a clutch member; supporting links for said clutch member; a pawl carried by said clutch;'a hoisting rope; a movable member to which said rope is attached, connected to said clutch, whereby the same is actuated to bring the pawl thereof into engagement with said pulley a spring for returning said movable member to its initial position; and a spring for returning said clutch member to its initial position when released, for the purpose specified.

11. The combination with a frame, of a pulley havingteeth tlu-n'eon; a clutch member; supportii-ig links for said clutch mem- 'ber' a awl carried b said clutch; a hoistin 7 I h rope; a'movable member to which said rope is attached,-connected to said clutch, wliereby the same is actuated 'to bring the pawl thereof into engagement with said pulley;-

and trip for said purpose specified. i p

.12. The combination with a frame, of va clutch 'member, for, the

' "being ada ted to be actuated by the load I ber; supporting links for said clutchr'nem-f ber; a pawl carried by said rope; and a movable inember to which said rope is attached, connected to said clutch, whereby the same is actuated to bring the pulley, for the purpose specified. pulley having teeth thereon; a movably supported clutch member; a pa'wl carried by said clutch; a hoistingrope; a movable member to which said rope is attached, connected to-said clutch whereby the same is actuated to br'ing the pawl thereof into engagement with. said pulley; a spring for returning said movable member to its initial position; a spring for returning said clutch member to its initial position when released; and a trip iprdsaidelutch member, for the purpose speci e i e 14. The combination with a frame, of a pulley having teeth thereon; a movabl'y supported-clutch member; a pawl. carried by said clutch; a hoisting rope; a movable member to which said rope isattached, connected to said clutch-whereby the same is actuated to bring the pawl thereof into engagement with said'pulley; a spring for returning said movable member to its initialpositiong and a spring for returnin said clutch member to its initial position w en'released, for the pur pose specified. '15. The combination with a frame, of a pulley having teeth thereon; a .movably said clutch; a hoisting rope a movable member to which said rope is-attached, connected to bring the pawl thereof into engagement with said pulley; and a trip for said clutch member, for the purpose specified.

16. The combination with a frame, of a pulley having teeth thereon; a movably supported clutch'member;apawlcarried by said clutch; a hoisting rope; and a movable nected to said clutch whereby the same is actuated to bring the pawlthereof into engagement with-said pulley, fornthe purpose specified.

' 17.',The combination with a frame of a pulley having teeth thereon; a movably supported clutch member; a by said clutch member; means for holding said clutch member yieldingly out of its engaging position and means for actuating said clutch member to bring the saidpawl carried thereby into engagement with said pulley, said pawl being arranged sothat the rearward revolution of the pulley draws the clutch niember'ihto clamping engagement with the rope, said clutch actuating means upon the misting rope.

member'to which said rope'is attached, con-- pulley having teeth thereon; a clutch memclutch; ahoisting pawl thereof into engagement with said supported clutch member; a pawl carried by g to said clutch whereby the same is actuated pawl carried load'thereon is sufficient to counteract the to (Bo-act with the pulley for clam pulley when pulley having tee means for holding said clutch member out of its engaging position, said clutch member being adapted to automatically return to its initial position when the hoisting rope is relie ved of the load. it

19, The combination with a frame of a pulleyya movably supported clutch member; means for connecting said clutch memher to said pulley arranged so that the rearward revolution of the pulley draws the clutch member into clampingengagement.

v with the rope, said means being adapted to be actuated by the load on the hoisting rope; and means for'automatically disen gaging said connecting means from said the hoisting rope is relieved. of its load. i i

20. The combination with a frame, ofa pulley having teeth thereon; a clutch member having a curved gripping face arranged to ,co-aet with'the pulley in gripping a rope; supporting links for said clutch member arranged in pairs so that both ends of said clutch member have a substantially uniform movement throughout the movement of the clutch. member; and a pawl carried. by said clutch member adapted to engage the teeth on said pulley whereby said clutch mem her is actuated.

2].. The combination with. a frame, at a ulley having teeth tl'iereonga clutch mem or having a curved gripping face adapted to co-act with the pullev for clamping a. rope; supporting links for said clutch member arranged so that all parts of the gripping face of the said clutch member are at substantially uniform distances froin the axis of the pulley throughout the nuwemenlof said clutch; and a pawl carried by said clutch member adapted. to engage the teeth of said pulley whereby said clutch member is actuated.

22. The combination i th i'ian'le. of a th iii-Tron; a bluish membe! having curved grinpimr far adapted supporting links for said illi/(ill numlwi' ranged so that all parts of the grippingface of the said clutch member are at substantially undorm' distances from the axis of the pulley throughout'the movement of the said clutch; and means for connecting said clutch member to saidpulley whereby said clutch is'brought into action on the rear? Ward movement of the pulley, for the purpose specified. v

23. The combination With a frame, of a pulley; a clutch member having a' curved gripping face adapted to eo-act. -withthe pulley for clampingarope; supporting links for said clutch member arrangedso that all parts of the gripping faced the said clutch.

meml'ier are at substantially uniform dis-' tances from the axis of the pulley throughout the movement of the said clutch; and means for connecting said clutch member to said pulley whereby said clutch brought into action on the rearward movement of the pulley, for the purpose specified."

24. The combination -with a frame of a pulley; a movable clutch member adapted. rto co-act with the pulley in clamping a rope, said clutch member being normally held in an inoperative position ;-1'neans for. connecting said clutch member to said pulley arranged so that the rearward revolution of the pulley draws the clutch member into clamping engagei'nent with the rope, said means being adapted to-be actuated by theload on the hoisting rope, and means for automatically returning said clutch, member to its initial, or .lisengaging position and disengaging the said pulley connecting means thereof When the hoisting rope isrelieved of its lead. 1

2.5. The combination With a frame of a iulley; a movably supported clutch memoer; a pulley engaging pawl carried by said clutch member arranged so that when it is in its engaging position. the rearward revolution of pulley draws the said clutch mem her into clan'iping engagement with the rope; a'hoisting rope, connections therefor to said clutch member whereby thesame'is actuated to bring said pawl conneeting means into its pulley engaging position, and means for automatically returning said clutch member toits initial position, when said pawl is disengaged from said pulley.

In witness whereof l have hereunto set' my hand and seal in the resenee .of two Witnesses v HUBER? A. MYERS. l i itnesses:

A. Sateen,

in. s] 

